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Chromatin Immunoprecipitation of Murine Brown Adipose Tissue
Published on: November 21, 2018
Chromatin immunoprecipitation (ChIP) methodology and readouts.
Charles E Massie1, Ian G Mills
1Uro-Oncology Research Group, Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Cambridge, UK.
Methods in Molecular Biology (Clifton, N.J.)
|January 2, 2009
Summary
Identifying direct nuclear hormone receptor gene targets is crucial for understanding development and cancer. Chromatin immunoprecipitation (ChIP) offers a more accurate method than in vitro techniques for finding these gene targets within cells.
Area of Science:
- Molecular Biology
- Genetics
- Cancer Research
Background:
- Identifying direct nuclear hormone receptor gene targets is key to understanding their roles in development and cancer.
- Traditional methods using expression analysis and in silico promoter searches have limitations.
- In vitro DNA binding strategies overlook crucial cellular factors influencing transcription factor binding.
Purpose of the Study:
- To highlight the limitations of current methods for identifying direct transcription factor targets.
- To introduce Chromatin Immunoprecipitation (ChIP) as a superior technique for target identification.
- To emphasize the importance of cellular context in transcription factor-mediated gene regulation.
Main Methods:
- Chromatin Immunoprecipitation (ChIP) to isolate transcription factor complexes within endogenous chromatin.
- Combining ChIP with various detection methods: site-specific PCR, cloning, genomic microarrays, and high-throughput sequencing.
- Utilizing ChIP to identify novel genomic targets of transcription factors.
Main Results:
- ChIP-based approaches enable the identification of direct transcription factor targets in their native cellular environment.
- These methods account for critical factors like DNA methylation, chromatin structure, and protein modifications.
- Application of ChIP has led to a redefinition of transcription factor consensus binding motifs.
Conclusions:
- ChIP assays provide a more accurate and comprehensive understanding of transcription factor binding and gene regulation.
- This technique overcomes the limitations of in vitro methods by preserving the cellular context.
- ChIP-based approaches offer significant insights into transcription factor biology and their roles in disease.
Related Concept Videos
02:36Chromatin Immunoprecipitation- ChIP
Chromatin immunoprecipitation, or ChIP, is an antibody-based technique used to identify sites on DNA that bind to transcription factors of interest or histone proteins. It also helps determine the type of histone modifications such as acetylation, phosphorylation, or methylation.
Types of ChIP
ChIP can be divided into two types - X-ChIP and N-ChIP. X-ChIP involves in vivo cross-linking of histones and regulatory proteins to DNA, fragmenting the DNA by sonication, and isolating the protein-DNA...
Types of ChIP
ChIP can be divided into two types - X-ChIP and N-ChIP. X-ChIP involves in vivo cross-linking of histones and regulatory proteins to DNA, fragmenting the DNA by sonication, and isolating the protein-DNA...
01:20Immunoprecipitation
Immunoprecipitation, or IP, is a widely used technique that employs protein-antibody interactions to isolate proteins or protein complexes in their native state for studying protein-protein interactions, quaternary structures, or supramolecular complexes. Various modifications of the technique, including chromatin IP, cross-linking IP, and fluorescence IP, are commonly used.
Chromatin Immunoprecipitation
Chromatin immunoprecipitation, also known as ChIP, is used to study protein-DNA or...
Chromatin Immunoprecipitation
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